The report was published in the March 15 issue of Scientific Reports.
During 19 days of pregnancy, Taylor's team exposed mice to radiation from a turned on -- but muted and silenced -- cellphone placed above the cage.
In another group, mice were kept under the same conditions but with a deactivated phone.
The researcher measured electrical activity in the brains of adult mice that were exposed to radiation as fetuses. In addition, they conducted psychological and behavioral tests.
They found the mice exposed to radiation tended to be more hyperactive and had increased anxiety and reduced memory.
The explanation for this finding isn't clear, Taylor said. It might be due to heating of the developing brain cells or electrical changes in these cells, he theorized.
Taylor noted that you don't have to be talking on the cell phone to be exposed to radio-frequency radiation: "There is always radiation transmitted as long as the cellphone is on," he said.
Speaking for the cellphone industry, John Walls, a spokesman for the CTIA-The Wireless Association, said that "the peer-reviewed scientific evidence has overwhelmingly indicated that wireless devices, within the limits established by the FCC, do not pose a public health risk or cause any adverse health effects."
However, some doctors believe that more study might be warranted.
Dr. Francene Gallousis, a perinatologist at Northern Westchester Hospital in Mt. Kisco, N.Y., said that "I think there is something to all this, but I don't know exactly what it is or how concerned we should be right now."
"It can't be ignored -- it needs to be looked into," she added.
Gallousis did suggest that to be safe, women should limit their exposure to cellphone radiation. She advised them to try to limit the time talking on the cellphone and to not leave it on if it doesn't have to be.
Dr. Nagy Elsayyad, an assistant professor in the
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